ANC86LA158

NTSB accident investigation · Cessna 207A · Mountain Villag, AK · September 17, 1986

Accident · No injuriesLimited investigationFinal report
Date
September 17, 1986, 12:20 local (20:20 UTC)
Place
Mountain Villag, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9736MCessna 207A
Weather
Visual (VMC) · Day
Status
Completed · report March 10, 1988
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19860917045769A
Case key
4742

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Airframe/component/system failure/malfunctionLanding - roll
Landing gear,normal brake system - failure,partialFactor
Operation with known deficiencies in equipment - attemptedPilot in commandCause
Hydraulic system,line - fatigueFactor
OverrunLanding - roll
Weather condition - crosswindFactor
Compensation for wind conditions - inadequatePilot in commandFactor
Proper touchdown point - not attainedPilot in commandFactor
Go-around - not performedPilot in commandFactor

Analysis

The airline transport pilot who is also a certificated airframe and powerplant mechanic elected to defer brake repairs until the end of the flying day. The fatigued right brake line failed before the end of the day's flying activity. During lndg the brakes failed and the acft overran the end of the rwy resulting in subst damage

Aircraft

Registration
N9736M
Reported as
Cessna 207A
Category
Airplane
Serial number
20700722
Airframe hours
4,937
Engine
Continental IO-520F, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Registered owner
Ryan Air Service, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · September 5, 1986 · 37 hours before
Departed
KSM · St. Marys, AK
Airport
MOU · Mountain Village, runway 34, 2,200 × 75 ft, gravel

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
30
Certificates
Flight instructor, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
2,579 total · 546 in this make and model · 2,526 as pilot in command · 318 in the last 90 days · 7 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 13 knots
Visibility
20 statute miles
Lowest ceiling
1,000 ft broken
Temperature
48 °F, dew point 46 °F
Altimeter
29.00 inHg
Observed at
KSM, 10 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.